Whakaoti i te 5-n-2/2.5=-15/2.5

$$5 - n - \frac { 2 } { 2.5 } = - \frac { 15 } { 2.5 }$$

Whakaoti mō n

$$n=10.2$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakarohaina te \frac{2}{2.5} mā te whakarea i te taurunga me te tauraro ki te 10.

$$5-n-\frac{20}{25}=-\frac{15}{2.5}$$

Whakahekea te hautanga \frac{20}{25} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.

$$5-n-\frac{4}{5}=-\frac{15}{2.5}$$

Me tahuri te 5 ki te hautau \frac{25}{5}.

$$\frac{25}{5}-n-\frac{4}{5}=-\frac{15}{2.5}$$

Tā te mea he rite te tauraro o \frac{25}{5} me \frac{4}{5}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{25-4}{5}-n=-\frac{15}{2.5}$$

Tangohia te 4 i te 25, ka 21.

$$\frac{21}{5}-n=-\frac{15}{2.5}$$

Whakarohaina te \frac{15}{2.5} mā te whakarea i te taurunga me te tauraro ki te 10.

$$\frac{21}{5}-n=-\frac{150}{25}$$

Whakawehea te 150 ki te 25, kia riro ko 6.

$$\frac{21}{5}-n=-6$$

Tangohia te \frac{21}{5} mai i ngā taha e rua.

$$-n=-6-\frac{21}{5}$$

Me tahuri te -6 ki te hautau -\frac{30}{5}.

$$-n=-\frac{30}{5}-\frac{21}{5}$$

Tā te mea he rite te tauraro o -\frac{30}{5} me \frac{21}{5}, me tango rāua mā te tango i ō raua taurunga.

$$-n=\frac{-30-21}{5}$$

Tangohia te 21 i te -30, ka -51.

$$-n=-\frac{51}{5}$$

Me whakarea ngā taha e rua ki te -1.

$$n=\frac{51}{5}$$